diff --git a/oml/changelog.py b/oml/changelog.py
index 15c185b..06b2a90 100644
--- a/oml/changelog.py
+++ b/oml/changelog.py
@@ -423,7 +423,7 @@ class Changelog(db.Model):
                 if len(peer_id) == 16:
                     peer = User.get(peer_id)
                     if peer:
-                        username = peer.json()['username']
+                        username = peer.json().get('username', 'anonymous')
                     action[peer_id] = [revision, timestamp, username]
                     if peer_id in changes.get('removepeer', []):
                         del changes['removepeer'][peer_id]